摘要： 为解决无线传感器网络逐跳节点拥塞控制问题,在节点网络层与链路层之间引入水槽流入与流出的数学 模型,提出一种针对逐跳节点级链路层帧缓冲区队列长度的拥塞控制模型,并采用基于趋近律的离散滑模控制结 构作为该模型的控制器,控制过程简便且易于实现。仿真结果表明,与常规的PID 控制、模糊PID 控制相比,该模 型在响应速度、延迟时间等方面性能较好。

关键词: 无线传感器网络, 拥塞控制, 离散滑模控制, 趋近律, 滑模变结构

Abstract: A new hop-to-hop congestion mathematical model between the network-layer and the link-layer is presented based on the tank balance relationship of the inflows and outflows for the node-congestion control in Wireless Sensor Network(WSN). The congestion control model is simpler than ever before and is easy to implement and a discretesliding mode controller is designed based on the reaching-law. The simulation results show that the proposed model is better than the traditional PID and fuzzy control in terms of response and delay.

Key words: Wireless Sensor Network(WSN), congestion control, discrete sliding-mode control, reaching-law, slidingmode variable structure

中图分类号: 

• TP393